Geological Appraiser {2}{R}{R}
Creature — Human Artificer
When Geological Appraiser enters the battlefield, if you cast it, discover 3. (Exile cards from the top of your library until you exile a nonland card with mana value 3 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)
3/2
I’m not sure what you mean, exactly, but on this card, the exile effect is only temporary. The cards go to the zone just as a way to keep them separate from any other card until everything resolves. The main mechanic here is the ability to cast a card for free, or put it into your hand.
Ohhhh ok I didn’t know exile could be a temp effect like that.
Yeah. There aren’t really zones where things are stuck permanently anymore, except maybe the “Emblem zone” that PW emblems exist in. For everything else, cards can move in and out when explicitly said to.